Hi,
In the process of replacing toilet and sink in cloakroom.
Wasn't happy with the amount of mould etc round the soil pipe and figured I should tackle the apparent leak before adding the new pan.
Having pulled back the floor and cleaned it, not impressed with what I've found.
There are some gaps, but during flushing, water is noticeably seeping through in the middle of the pic, the beige area where the salt glazed pipe had been broken.
It looks like there is the remains of expanding foam or something behind.
I'm after some advice on a fix for this. Can I put some mortar with waterproofer in it to fill the gaps? Or is there a decent sealant/filler that would be an alternative?
In the process of replacing toilet and sink in cloakroom.
Wasn't happy with the amount of mould etc round the soil pipe and figured I should tackle the apparent leak before adding the new pan.
Having pulled back the floor and cleaned it, not impressed with what I've found.
There are some gaps, but during flushing, water is noticeably seeping through in the middle of the pic, the beige area where the salt glazed pipe had been broken.
It looks like there is the remains of expanding foam or something behind.
I'm after some advice on a fix for this. Can I put some mortar with waterproofer in it to fill the gaps? Or is there a decent sealant/filler that would be an alternative?

